Replying to Where should I mount my Armada El Reys?

I plan on using them for park (80/20 park over all-mtn) but it is about -5 cm factory recommended. Would -3 or -2 be good? How far can I go up before they start sucking ass? Also are the El Reys good park skis? They were labeled as park skis on evo and their recommended use was park, but after reading up on them on newschoolers, it seems like they are more all-mountain oriented. Will they hold up fine on rails and jumps?

If any of this matters...
Bindings are Marker Squires
Skis are 171 cm (2014), I'm 5'7" and 145 lbs

I'll also add that I paid 320 for them and AR7s are 310 on evo right now. Someone kill me